Half to e



(No Model.)

v C. W. SEDWIGK.

SGROLL SAWING MACHINE. No. 398,803. Patented Feb. 26, 1889.

J7; 7/0272)": aha/KM UNlTED STATES PATENT ()FFICE.

BALVIN \V. SEIHVICK, OF (.ALLEXSBURG, PEXNSYLVANIA, ASSIGXOR OF ONE-HAL'F TO E. E. ELLIOTT, OF SAME PLACE.

SCROLL=SAWING MACHINE.

SPECIFICATION forming part of Letters Patent No. 398,803, dated February26, 1889.

Application filed September 24, 1886. fierial No. 214,465. (No model.)

To all whom it may concern:

Be it known that I, CALVIN W. SEDwIoK, a

citizen residing in the borough of Callensburg,

in the county of Clarion and State of Penn sylvania, have invented a newand useful ficrollfi wawing' Machine, of which the following is aspecification.

My invention relates to improvements in sawing-machines, which will befully underto stood from the following description and claim, when takenin connection with the annexed drawings, in which Figure l. is apm'spective view of m vi1nproved machine emnplete, and Fig: 2 is asectional detail of the device for tightening the saw.

A represents the table; I}, the frame on which the entire machine ishung; (1, the two beams the one alrove the saw and the other below thesaw-and on a downward motion the lower beam draws the saw down, and onan upward motion the upper beam draws the saw up. thus doing awayentirely with the breaking of saws which is so common in other machines;I) l), the central axes, on which the beams oscillate with littlefriction, causing the machine to run with but very little power; E, thesteel strap which connects on tightt ningserew l on back end of upperbeam; (hthehalt steel strap on front end 01' upper beam, connected withsaw-strap 1-1; and H, saw-clamp connected with saw I, with steel strap Hthat connects on lower end of saw and couueetsto the knuckle J at upperend of pitnian, all of which are adjustable by the manipulating of thetightening- Thus i up to the work, and by the manipulation of theblll1l11lJSCPOW L the foot M can be raised or lowered to suit anythickness of lumber.

For the purpose of securing great lightness and at the same timestrength and rigidity of the beams C C, I employ bracing-straps G Z Thebracing-strap G of the upper beam C is secured at its rear end to thebracket Z, through which the tightening-screw F is tapped, whichbracket: is rigidly secured to the said beam. The front end of thisstrap G is also secured to its beam and provided with a loop, (I,through which passes the up- 5 5 per saw-strap, H, to which loop thelatter strap is connected by a removable pin. At or near the middle ofthe length of the upper beam (1 and its strap G a post, Z, technieallyknown as a straining-post. The lower beam is also provided with a strap,Z the rear end of which is seen red to the same piece,

I), to which the strap E is secured. The front end of this lowerlnacing-strap, Z is secured to the knuckle J, and at the middle of thelength of the strap Z in a st'rainingpost, Z

\VhatIclaimasmyinvention, and desire to secure by Letters Patent, is

The within -described scroll-sawing machine, consisting of the mainsupporting-tralne having the overhanging arm B, the upper and loweroscillating beams, G C, each provided with bracing-straps andstraining-posts, the straining-strap, its adjust ing-screw F, thebracket Z, the two straps l-l H the slide H, the adjustaliile guide, thesaw I, the vertical back guide forming part of the arm B and providedwith vertical apertures, the adjust able pressure-rod, and the setscrewfor securing said rod, substantially as specified.

(ALVIN \V. SEDlVICK.

Nit nesscs:

ALEXANDER CoLwELL, JOSHUA S. SEDWICK.

